<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title></title>
<meta charset="UTF-8">
<script type="text/javascript">
	function convertCurrency(currencyDigits) {
		// Constants:
		var MAXIMUM_NUMBER = 99999999999.99;
		// Predefine the radix characters and currency symbols for output:
		var CN_ZERO = "零";
		var CN_ONE = "壹";
		var CN_TWO = "贰";
		var CN_THREE = "叁";
		var CN_FOUR = "肆";
		var CN_FIVE = "伍";
		var CN_SIX = "陆";
		var CN_SEVEN = "柒";
		var CN_EIGHT = "捌";
		var CN_NINE = "玖";
		var CN_TEN = "拾";
		var CN_HUNDRED = "佰";
		var CN_THOUSAND = "仟";
		var CN_TEN_THOUSAND = "万";
		var CN_HUNDRED_MILLION = "亿";
		var CN_SYMBOL = "人民币";
		var CN_DOLLAR = "元";
		var CN_TEN_CENT = "角";
		var CN_CENT = "分";
		var CN_INTEGER = "整";
		
		// Variables:
		var integral; // Represent integral part of digit number.
		var decimal; // Represent decimal part of digit number.
		var outputCharacters; // The output result.
		var parts;
		var digits, radices, bigRadices, decimals;
		var zeroCount;
		var i, p, d;
		var quotient, modulus;
		
		// Validate input string:
		currencyDigits = currencyDigits.toString();
		if (currencyDigits == "") {
			alert("Empty input!");
			return "";
		}
		if (currencyDigits.match(/[^,.\d]/) != null) {
			alert("Invalid characters in the input string!");
			return "";
		}
		if ((currencyDigits).match(/^((\d{1,3}(,\d{3})*(.((\d{3},)*\d{1,3}))?)|(\d+(.\d+)?))$/) == null) {
			alert("Illegal format of digit number!");
			return "";
		}
		
		// Normalize the format of input digits:
		currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters.
		currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning.
		// Assert the number is not greater than the maximum number.
		if (Number(currencyDigits) > MAXIMUM_NUMBER) {
			alert("Too large a number to convert!");
			return "";
		}
		
		// Process the coversion from currency digits to characters:
		// Separate integral and decimal parts before processing coversion:
		parts = currencyDigits.split(".");
		if (parts.length > 1) {
			integral = parts[0];
			decimal = parts[1];
			// Cut down redundant decimal digits that are after the second.
			decimal = decimal.substr(0, 2);
		}
		else {
			integral = parts[0];
			decimal = "";
		}
		// Prepare the characters corresponding to the digits:
		digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT, CN_NINE);
		radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);
		bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);
		decimals = new Array(CN_TEN_CENT, CN_CENT);
		// Start processing:
		outputCharacters = "";
		// Process integral part if it is larger than 0:
		if (Number(integral) > 0) {
			zeroCount = 0;
			for (i = 0; i < integral.length; i++) {
				p = integral.length - i - 1;
				d = integral.substr(i, 1);
				quotient = p / 4;
				modulus = p % 4;
				if (d == "0") {
					zeroCount++;
				}
				else {
					if (zeroCount > 0){
						outputCharacters += digits[0];
					}
					zeroCount = 0;
					outputCharacters += digits[Number(d)] + radices[modulus];
				}
				if (modulus == 0 && zeroCount < 4) {
					outputCharacters += bigRadices[quotient];
				}
			}
			outputCharacters += CN_DOLLAR;
		}
		// Process decimal part if there is:
		if (decimal != "") {
			for (i = 0; i < decimal.length; i++) {
				d = decimal.substr(i, 1);
				if (d != "0") {
					outputCharacters += digits[Number(d)] + decimals[i];
				}
			}
		}
		// Confirm and return the final output string:
		if (outputCharacters == "") {
			outputCharacters = CN_ZERO + CN_DOLLAR;
		}
		if (decimal == "") {
			outputCharacters += CN_INTEGER;
		}
		outputCharacters = CN_SYMBOL + outputCharacters;
		return outputCharacters;
	}
</script>
</head>
<body>
	<input type="text" size=20  id="input"/>
	 <input type="button" id="btn" value="Convert" />
	<input type="text" size=60 id="output"/>
	
	<script src="https://ajax.aspnetcdn.com/ajax/jquery/jquery-3.3.1.min.js"></script>
	<script>
		$('#btn').on('click',function (){
			
			var s=convertCurrency($('#input').val());
			//alert(s);
			$('#output').val(s);
			
		})
	</script>
</body>
